Transmitting in a straight line and critical orientation to the RFID tags are some of the functions of the Linear RFID antennas. This kind of antennas can be used for conveyer belts where tags can be attached to cartons in a proper way. This kind of antennas must have a known RFID tag orientation and the RFID tag must be fixed upon the same plane as the antenna in order to get a consistent read.

Radiates radio wave power uniformly in all directions in one plane is one of the uses or functions of an Omni directional RFID antenna. Decreasing with elevation angel above or below plane, dropping to zero on the antenna's axis with the radiated power.‎